KR20000077430A - Meter for vehicle - Google Patents

Abstract

By adjusting the incident time and color of the light to the scale plate, novel display is provided.

The light source 81 supplies light to the scale plate 20a along the plate thickness direction through the diffusion plate 70a and the light guide plate 60. The light source 82 is supplied from the lower end opening 61a into the light guide plate 60. Light is supplied from the light guide plate 60 to the scale plate 20a. The light source 83 enters light from its base in the light emission guide 20c. Each of the light sources 81 and 82 and the light source 83 light up in time.

Description

Automotive instrument {METER FOR VEHICLE}

The present invention relates to various indicators such as indicators mounted on a vehicle.

Background Art Conventionally, a vehicle indicator is disclosed in Japanese Patent Laid-Open No. 9-21655. In this indicator, a printed board is retrofitted between the scale plate and the drive part located in the face side, and the light source for supplying both a scale plate and a guide | guide is provided on the surface of this printed board.

However, in the indicator, the display mode of the scale plate and the instructions is the same in order to supply both the light to the scale plate by the same light source. The marking is not made uniformly clear for this purpose.

Therefore, an object of this invention is to change a display aspect.

In order to achieve the above object, the present invention emits one of the light source for the scale plate and the guide light source, and then emits the other light after a predetermined time.

Here, the light source for the scale plate can use the light source which supplies light along the plate thickness direction of a light guide plate, and both or one side which supplies light to the light guide plate from the end of a light guide plate. You may further employ | adopt the structure which supplies light to the surface of a scale plate from a light guide plate.

In order to achieve the above object, the present invention selectively emits a light source for supplying light along the plate thickness direction of the light guide plate and a light source for supplying light into the light guide plate from the end of the light guide plate according to the brightness of the surroundings of the vehicle. You may employ | adopt the structure which supplies light to the surface of a scale plate from a light guide plate.

The present invention for achieving the above object is provided with adjusting means for adjusting the amount of light supplied to the light guide plate from the end of the light guide plate according to the plate thickness direction of the light guide plate. As a result, different amounts of light are obtained. In this case, both become different colors. Furthermore, after one of the light source for the scale plate and the light source for guidance is made to emit light, the other side is made to emit light after a predetermined time. You may employ | adopt the structure which supplies light to the surface of a scale plate from a light guide plate.

In order to achieve the above object, the present invention provides a control means for adjusting the amount of light supplied along the plate thickness direction of the light guide plate and the light amount supplied to the light guide plate from the end of the light guide plate. In this case, both are of different colors. Moreover, both are selectively emitted in accordance with the brightness of the vehicle's attention. You may employ | adopt the structure which supplies light to the surface of a scale plate from a light guide plate.

In order to achieve the above object, the present invention made the light supplied along the plate thickness direction of the light guide plate different from the light transmitted through the inside of the light guide plate. You may employ | adopt the structure which supplies light to the surface of a scale plate from a light guide plate. The light transmitted through the inside of the light guide plate and the light supplied to the branch may be different colors.

It is preferable to provide a plurality of light sources on the circuit board. It is preferable to use a light shielding cylindrical body that separates the guide light source from other light sources. The scale plate may be composed of a central portion and an outer circumferential portion, and may be configured to supply light from the light guide plate toward the outer circumferential portion. The scale plate may be composed of a central portion and an outer circumferential portion, and may have a configuration in which light from the light source for transmitted light passes therebetween.

1 is a partially broken front view showing a first embodiment of the present invention.

2 is a cross-sectional view taken along the line 2-2.

3 is a circuit configuration diagram of the first embodiment.

4 is a flowchart showing the operation of the microcomputer.

5 is a circuit configuration diagram showing a second embodiment of the present invention.

6 is a flow chart showing operation of the microcomputer of FIG.

Fig. 7 is a circuit arrangement drawing showing a third embodiment of the present invention.

8 is a flowchart showing operation of a microcomputer.

Fig. 9 is a partially broken front view showing a fourth embodiment of the present invention.

10 is a cross-sectional view taken along the line 10-10 in FIG.

Fig. 11 is a sectional view showing a fifth embodiment of the present invention.

Best Mode for Carrying Out the Invention Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)

1 to 4 show an embodiment in which the present invention is applied to a combination meter for an automobile. This conduit meter is arranged in the instrument panel, which is shown in Figs. 1 and 2, the speedometer 20, the indicator 30 and the speedometer 20 arranged in the instrument panel 10 alongside the instrument panel 10. The rotation system 40 is provided.

The speedometer 20 is provided with the scale plate 20a formed in the instrument panel 10, and the drive part 20b as a rotational counter provided in the position corresponding to the scale plate 20a toward the face of the instrument panel 10. As shown in FIG. The scale plate 20a is provided on the left side of the instrument panel 10 shown in FIG. 1. In addition, the part except the internal scale plate 20a of the instrument panel 10, the indicator part 30a mentioned later, and the scale plate 40a is black.

The scale plate 20a is a material which transmits light. The scale plate 20a is provided with a circular arc-shaped scale character portion 21 for displaying a vehicle speed, and the scale and characters of the scale character portion 21 are black.

The vehicle speedometer 20b includes a cross coil type drive unit 22 and a guide shaft 23, and the guide shaft 23 has a light through hole of the circuit board 80 from the drive unit 22 and a reflector 70 to be described later. It extends rotatably upward through the lower end opening of the reflecting plate part 72 of the light guide plate, the lower end opening 61a of the light guide plate 60, and the through-hole 11 of the instrument panel 10 (scale plate 20a). However, the driving unit 20b is supported in the casing 90 together with the rotating substrate 80, the reflecting plate 70, and the light guide plate 60. In addition, the driving unit 22 rotates the guide shaft 23 based on the electromagnetic force in accordance with the input. Moreover, it is provided in the instrument panel 10 of the casing 90 from the inner surface side.

In addition, the vehicle speedometer 20 includes a light emitting instruction 20c, which has a guide body 24 and a cover 25. The guide body 24 has a transparent light guide and is formed in a rod shape by a resin material. The guide body 24 is supported by the tip of the guide shaft 23 at the boss of the base 24a. As shown in Fig. 2, the base 24a of the guide main body 24 has an inclined surface 24c, which serves as a reflecting surface. Since the cover 25 is covered with the guide body 24, the cover 25 has a slit 25a on the upper wall corresponding to the top surface of the guide part 24b of the branch body 24.

As a result, in the light emission guide 20c, when light enters from the lower surface of the base body 24a of the guide main body 24, the light is reflected by the inclined surface 24c and proceeds in the guide portion 24b. Accordingly, the light in the guide portion 24b exits through the slit 25a of the cover 25. In the end, it means that the guide portion 24b emits light by the light emitted from the slit 25a. 2, reference numeral 26 denotes a balance.

The light guide plate 60 is disposed in the instrument panel 10 along its inner surface. The light guide plate 60 has a light guide plate portion 61 having a four-sided cross section at a portion corresponding to the scale plate 20a. The light guide plate 61 is arranged concentrically with the guide shaft 23, and the light guide plate 61 faces downward from the inner surface of the scale plate 20a so as to surround the guide shaft 23, as shown in FIG. The ends extend in a bent shape. The light guide plate 60 is formed of a light guide resin material.

The reflecting plate 70 is disposed in the light guide plate 60 along its inner surface, and the reflecting plate 70 has an approximately eight-shaped reflecting plate having an annular cross section so as to correspond to the arc-shaped scale letter portion 21 of the scale plate 20a. It has a portion 71. The cross-sectional shape of the reflecting plate 71 is a shape extending from the inner surface of the light guide plate 60 in a shape where the end is bent in the downward direction in FIG. 2.

In addition, the reflecting plate 70 includes a reflecting plate portion 72 having an octagonal cross section, and the reflecting plate 72 extends in a bent end along an inner surface of the light guiding plate portion 61 of the light guiding plate 60. have. The surface of the reflecting plate 70 (the surface on the side of the light guide plate 60) is printed by a white printing material.

As shown in FIG. 2, the annular diffusion plate 70a is provided along the inner surface of the light guide plate 60 in the upper end opening 71a of the reflecting plate portion 71. The diffusion plate 70a is formed of a diffusion material.

The circuit board 80 is supported in parallel to the instrument panel 10 along the drive unit 22 in the casing 90, and a plurality of light sources 81 are reflected on the surface of the circuit board 80. Are arranged at intervals along the circumferential direction of the lower end opening 71b so as to be located in the lower end opening 71b of the annular reflector plate 71 of Fig. 1 (see Fig. 1). The light source 81 functions as a transmission light source 81, supplies light along the plate thickness direction of the light guide plate, and illuminates the scale plate from the inner surface. Is disposed on the surface of the circuit board 80 at intervals along the circumferential direction of the lower opening 61a so as to face the lower opening 61a of the light guide plate 61 (see FIG. 1). Each light source 82 enters light from the lower end opening 61a into the reflecting plate portion 61 of the light guide plate 60. These light sources 82 It functions as a light guiding light source 82 and supplies light into the light guiding plate from the end of the light guiding plate along the direction of the plate surface, which exits from the light guiding plate and illuminates the scale plate from the inner surface. The light source 82 is a second background light source.

The plurality of light sources 83 are arranged on the upper surface of the circuit board 80 at intervals in the circumferential direction so as to face the bases 24a of the light emitting instructions 20c (see Fig. 1). Each light source 83 emits light from its lower surface to the base of the guide body 24b by the light emission. These light sources 83 function as guide light sources 83. The light source 83, the light source 81, and the light source 82 emit light of different colors. In addition, the number of the light sources 83 may be changed as needed similarly to the number of the light sources 81 and 82.

The outer cylinder 84 is positioned in the light guide plate portion 61 of the light guide plate 60 and the annular reflecting plate portion 72 of the reflecting plate 70 so as to be coaxial with the guide shaft 23. It is sandwiched between 80. On the other hand, the inner cylinder 85 is mounted on the surface of the circuit board 80 so as to be coaxially positioned with the cylinder 84 inside the cylinder 84 and between the cylinder 85 and the cylinder 84. Each light source 83 is arrange | positioned at. In addition, the cylinder 84 and the cylinder 85 are formed with the light-shielding resin material together.

In addition, the rotation system 40 is also substantially the same as the vehicle speedometer 20. The tachometer 40 has a scale plate 40a formed on the instrument panel 10 and a driving portion 40b (see FIG. 3) disposed on the inner side of the instrument panel 10, and the scale plate 40a is formed of the engine of the vehicle. The pattern part 41 which shows rotation speed is provided.

The indicator 30 is equipped with the indicator part 30a formed in the instrument panel 10. As shown in FIG. 1 and 2, reference numerals 100 and 110 denote annular plate plates and curved front panels, respectively.

Also, as shown in FIG. 3, the combination meter includes a vehicle speed sensor 120, a rotation speed sensor 130, and a microcomputer 140. The vehicle speed sensor 120 detects the vehicle speed. The rotation speed sensor 130 detects the rotation speed of the engine.

The microcomputer 140 executes the computer program according to the flowchart shown in FIG. 4 and during this execution, each of the driving units 20b and 40b based on the respective detection outputs of the vehicle speed sensor 120 and the rotation speed sensor 130. Operation of the light source and turning off each of the light sources 81 to 83 is performed. In addition, the computer program is previously recorded in the ROM of the microcomputer 140. In addition, the microcomputer 140 is operated by being fed directly from the battery B mounted in the vehicle. In Fig. 3, reference numeral IG denotes an ignition switch of the vehicle.

The ignition switch IG is turned on while the microcomputer 140 repeats the determination of NO in step 200 according to the flowchart of FIG. 4.

The microcomputer 140 performs the determination process of YES in step 200. FIG. Subsequently, in step 210, an output process is performed based on the detection outputs of the vehicle speed sensor 120 and the rotation speed sensor 130, respectively.

Accordingly, the vehicle speedometer 20 rotates the light emission instruction 20c in accordance with the operation of the drive unit 20b, and the rotation system 40 in accordance with the operation of the drive unit 40b. Rotate). Thereby, the light emission instruction 20c displays the vehicle speed on the surface of the scale plate 20a, and the light emission instruction 40c displays the rotation speed on the surface of the scale plate 40a.

After the process of step 210, in step 220, each light source 83 of the vehicle speedometer 20 and each guide light source of the tachometer 40 light up together. Accordingly, in the vehicle speedometer 20, light from each light source 83 is incident from the base 24a in the guide body 24 of the light emission instruction 20c. Then, the incident light from each light source 83 is reflected by the inclined surface 24c in the guide main body 24 and propagates in the guide part 24b. Then, the light in the guide portion 24b exits from the slit 25a of the cover 25. The same applies to the rotation system 40 as well.

After the process of step 220, in step 221, the presence or absence of the lapse of a predetermined delay time (for example, 1 second) is determined. This determination is a comparison between the delay time after the processing of step 220 by the timer built in the microcomputer 140 and the delay time. The timer is also reset at the same time as the processing of step 220 to start the time.

After that, when the start time of the timer reaches the predetermined delay period, the determination in step 221 is YES. In step 230, each of the light sources 81 of the vehicle speedometer 20, the transmission light sources of the light sources 82 and the rotation system 40, and the light guide light sources are turned on.

Thereby, each light source 81 of each vehicle speedometer 20, each light source 82, and each transmission light source and each light guide light source of the rotation system 40 turn on simultaneously. Accordingly, the light of each light source 81 is reflected on the inner surface of the reflecting plate portion 71 of the reflecting plate 70 and then diffused by the diffuser plate 70a to transmit the scale plate 20a as uniform diffused light. Also in the rotating shaft 40, it is the same as that of the vehicle speedometer 20. FIG.

After the process of step 230, it is determined whether the ignition switch IG is off. If the ignition switch IG is kept on at this stage, the determination is made NO at step 240, and the processes of steps 200 to 230 are repeated.

On the other hand, when the determination in step 240 becomes YES, in step 250, the output processing of the vehicle speed and the rotational speed is stopped, and the lighting processing of the respective light sources is performed. As a result, the instruction by the light emitting instructions 20b and 40b is stopped, and the light sources of the vehicle speedometer 20 and the tachometer 40 are turned off.

As described above, after turning on each of the guide light sources of the vehicle speedometer 20 and the tachometer 40 on the assumption that the ignition switch IG is turned on, after the delay time has elapsed, the speedometer 20 and the tachometer 40 Each transmitted light source and the light guide light source are turned on. As a result, in the vehicle speedometer 20, the light emission guide 20b emits light from the slit 25a, assuming that the ignition switch IG is turned on, and then the scale plate 20a emits light after the elapse of the delay time. .

As a result, novel visibility can be ensured by the time difference and the like through the delay time as described above. In this case, since the color of the scale plate 20a becomes the light emission color of the transmission light source and the light guiding light source, and the light emission color of the guide light source is different, the light emission color of the light emission guide and the color of the guide plate are different. have. Moreover, since each light source 83 is shielded by the cylinder 84, the light of these light sources 83 does not leak to the light source 81, 82 side. Also in the rotation system 40, the same effect is obtained.

The light source 83 may be lighted after the predetermined delay time elapses after the light source 81 and the light source 82 are turned on. In this case, the lighting of the light source 81 and the light source 82 also turns on the light source 83 after a predetermined delay time elapses, and as a result, the effect substantially the same as that of the first embodiment can be achieved. Further, although the emission colors of the respective light sources of the guide, the transmission and the light guiding are the same together, the time difference causes novelty.

(2nd Embodiment)

Next, a second embodiment of the present invention will be described with reference to FIGS. 5 and 6. An automobile lighting device 150 mounted in an automobile is additionally connected to the microcomputer 140. When the driving environment of the vehicle is at night, the vehicle lighting device 150 detects a decrease in the amount of light by the light quantity sensor, turns on a lamp such as a small lamp of the vehicle, and simultaneously detects the detection output of the light sensor. Output to 140.

The light emission color of each light source 81 is orange, and the light emission color of each light source 82 is white. The microcomputer 140 also executes the computer program according to the flowchart shown in FIG. The other structure is the same as that of the said 1st Embodiment.

When the next microcomputer 140 finishes the processing in step 210, in step 260, it is determined whether the driving environment of the vehicle is night. Here, if the vehicle is in night driving, it is determined in step 260 whether or not it is YES based on the detection output of the light sensor of the vehicle lighting device 150.

Then, in step 261, each of the guide light sources of the vehicle speedometer 20 and the tachometer 40 is turned on. To this end, each of the guide light sources is turned on, and accordingly, both light emission instructions 20c and 40c emit light at each slit together.

In step 262, the angle light source of the speedometer 20 and the tachometer 40 is turned on. To this end, as the respective light guide light sources are turned on, the scale plates 20a and 40a enter light from the light guide plate 60 to emit light.

On the other hand, if the determination in step 260 becomes NO based on the detection output of the light quantity sensor of the car lighter 150 because the running environment of the vehicle is daytime, then the speedometer 20 in step 263. And the transmission light source of the rotation system 40 are turned on. To this end, the respective transmitted light sources are turned on, and accordingly, each of the scale plates 20a and 40a emits light.

When the driving environment of the vehicle is at night, each of the guide light sources and the light guide light sources of the vehicle speedometer 20 and the tachometer 40 are turned on, and when the driving environment of the vehicle is at night, the vehicle speedometer 20 and the tachometer 40 Each transmitted light source is turned on.

As a result, both of the graduation plates 20a and 40a emit white light at night, and both of the graduation plates 20a and 40a emit light orange at night. As a result, the novelty is caused by the night switching of the two scale plates 20a and 40a.

In step 260, it may be determined whether the circumference of the automobile is cancer as in night. For example, the same effect can be obtained depending on whether it is in a tunnel.

In addition, although the light emission color of each light source 81 turns into orange, it is not limited to these, The light emission color of each light source 81 is made into a natural color, and the diffuser plate 70a is formed from the orange diffusion resin material, or it is made into orange color. You may make it color.

The emission color of each light source 81 is orange, and the emission color of each light source 82 is white. However, without limitation, the emission color of each transmitted light source 81 is white and the emission color of each light source 81 is white. It may be orange.

In addition, although the determination in step 260 is performed by the output of the optical sensor of the automatic lighter 150, on the other hand, the determination in step 260 is performed by the lighting output of the small lamp L. FIG. You may also do so.

(Third Embodiment)

7 and 8 show a third embodiment of the present invention. As shown in Fig. 7, a configuration in which the variable resistor 160 is additionally connected to the microcomputer 140 is adopted.

The variable deceleration 160 is used to adjust the light intensity of each light guide light source of the vehicle speedometer 20 and the tachometer 40. Here, the variable resistor 160 is adjusted in accordance with the satisfaction of the occupant of the vehicle at the low value, and inputs this adjustment resistance value to the microcomputer 140. However, the resistance of the variable resistor 160 and the excess of each light guide light source are inversely proportional.

In addition, the light emission color of each light guide light source of the vehicle speedometer 20 and the tachometer 40 is green, and the light emission color of each transmitted light source is orange. In addition, the microcomputer 140 executes the flowchart shown in FIG. The other structure is the same as that of the said 2nd Embodiment.

In step 261, after each guide light source of the vehicle speedometer 20 and the tachometer 40 is turned on, in step 264, each of the light guide light sources and the transmission of the vehicle speedometer 20 and the tachometer 40 are transmitted. The light source is turned on.

To this end, the light guide light sources and the transmission light sources of the vehicle speedometer 20 and the tachometer 40 are turned on. Therefore, in step 265, the resistance value from the variable resistor 160 is input and the adjustment process of the light quantity of each light guide light source is performed. To this end, the light amount of the light guide light source is the light amount according to the disposition value of the variable resistor 160.

Here, when the resistance value of the variable resistor 160 becomes the minimum value, for example, in the vehicle speedometer 20, the light intensity of each light source 82 becomes maximum. To this end, since the green color of each light source 82 and the orange color of each light source 81 are combined, the emission color of the scale plate 20a becomes yellow.

In addition, when the resistance of the variable resistor 160 is maximized, the amount of light of each light source 82 is minimized. To this end, the orange color of each light source 81 becomes significantly superior to the green color of each light source 82, and the emission color of the scale plate 20a becomes substantially orange.

In this way, the emission color of the scale plate 20a can be adjusted between orange and yellow by adjusting the resistance of the variable resistor 160 due to occupancy to. Color adjustment is also possible in the rotation system 40. Thereby, novelty can be improved further.

In addition, a variable rectifier for adjusting the amount of light of each transmitted light source is also employed to adjust the resistance of the variable resistor, but the emission color of the scale plate can be adjusted between orange and green via yellow. As a result, the change range of the emission color is further widened.

Further, the process of steps 264 and 265 is performed based on the determination of NO in step 260, while the processing of both steps 261 and 263 is performed based on the determination of YES in step 260. It may be performed.

In the first embodiment, the variable resistor 160 is added, the emission color of each transmitted light source is made orange, and the emission color of each light guide light source is made green. In step 230 of FIG. The emission color may be adjusted according to the resistance value of 160.

(4th Embodiment)

9 and 10 show a fourth embodiment of the present invention. The instrument panel 10A, the light guide plate 60A, the light guide member 170, the reflector 180, and the annular diffuser plate 180a are employed.

The instrument panel 10A is provided with each scale plate 20d and 40d, and the scale plate 20d is divided into a central portion 27 of a roughly discoid shape and an outer portion 28 of a roughly annular shape. . The outer circumferential portion 28 is located concentrically along the outer circumference of the central portion 27, and the outer circumferential portion 28 is located at the inner circumferential edge 27a of the central portion 27 at its circumferential edge 28a, as shown in FIG. 10. Located on the side. The outer circumferential portion 28 is formed in an inclined cross section so as to extend from the circumferential edge 28a to the surface side of the central portion 27 from the outer circumferential edge 28b. In addition, the instrument panel 10A is attached to the inner circumferential inner surface of the bottom wall 101 of the shoulder plate 100 at its outer peripheral portion.

Here, the outer circumferential portion 28 corresponds to the inner scale of the scale molecule portion 21 of the scale plate 20a described in the second embodiment, hereinafter referred to as the scale portion 28. In addition, the outer peripheral part of the center part 27 corresponds to the part which shows the internal character of the scale character part 21 of the scale board 20a, and is called the character part 27a hereafter. In addition, the part other than the internal character part 27a of the center part 27 is the same as the part except the internal graduation character part 21 of the scale board 20a.

The dial 40d is substantially the same as the dial 20d. The scale plate 40d is provided with a roughly disk-shaped central portion 42 and a roughly annular outer circumferential portion 43 corresponding to the center portion 27 and the outer circumferential portion 28 of the scale plate 20d, respectively. The outer circumferential portion 43 corresponds to the scale portion inside the scale character portion of the scale plate 40a, and the outer circumferential portion 42a of the center portion 42 corresponds to the character portion inside the scale character portion of the scale plate 40a.

The light guide plate 60A is disposed along the inner surface of the instrument panel 10A, and the light guide plate 60A is positioned substantially concentrically so that the guide shaft 23 is fitted through the opening 62. Here, the opening portion 62 has an arc shaped light guide plate portion 63. The light guide plate portion 63 extends from the inner surface of the scale plate 10d in FIG. 10 toward the lower side shown in the figure to the guide shaft 23 in a convex, convex curved shape. The light guide plate portion 63 opposes each light source 82 at its lower end portion 63a.

10A, the light guide plate 60A has a substantially circular exit cross section 64 on the inner side of the outer circumferential edge 27a of the central portion 27, and the exit cross section 64 has a scale portion ( 28) faces the surface. The portion corresponding to the internal scale plate 40d of the light guide plate 60A is also similar to the scale plate 20d. The light guide plate 60A is formed of a light guide resin material.

The reflector 180 has an annular rim 181, as shown in FIG. 10, which is formed between the bottom wall 101 of the plate plate 100 and the opening of the casing 90. The screw 91 is tightened through the outer circumferential portion of 80 so as to be squeezed in the opening of the casing 90. As a result, the reflector 180 is sandwiched between the shoulder plate 100 and the casing 90 via the circuit board 80.

The reflector 180 is provided with the reflecting plate 182 which comprises the upper wall of the annular edge 181. As shown in FIG. The reflecting plate 182 is provided with a reflecting plate portion 183 having an eight-sided cross section, and the reflecting plate 183 extends in a tapered shape downward from the inner surface side of the light guide plate 60A. Here, the reflecting plate portion 183 is formed in an arc shape along the inner surface of the light guide plate 60A corresponding to the rotation range of the internal light emission guide 20c of the scale plate 20d, and has an annular shape of the reflecting plate portion 183. Each light source 81 is located in the lower end opening 183a along its circumferential direction.

The reflector 180 is provided with a reflecting plate portion 186 having a substantially circular arc, and the reflecting plate portion 186 is positioned coaxially with the light guide portion 63 as shown in FIG. 10, and the reflector 180. It extends inclined to each light source 82 from the inner peripheral part of the inner reflecting plate part 183 of this. Thereby, this reflecting plate part 186 achieves the role which reflects the light of each light source 82 toward the outer peripheral surface of the light guide part 63.

Moreover, the reflecting plate 182 is equipped with the outer cylinder 184 in the position corresponding to the opening part 62 of the light guide plate 60A, The outer cylinder 184 corresponds to the outer peripheral part of the opening part of the scale plate 20d, and it corresponds to this. It is sandwiched between the parts of the circuit board 80. Moreover, the reflecting plate 182 is provided with the inner cylinder 185, and this inner cylinder 185 is located concentrically with the guide shaft 23 in the outer cylinder 184, and has an annular bottom wall of the outer cylinder 184. It stands up from the inner periphery of 184a. The inner surface of the reflecting plate portion 183, the inner surface of the outer cylinder 184 and the outer circumferential surface of the inner cylinder 185, and the inner surface of the reflecting plate 182 are printed with a white printing material.

The annular diffuser plate 180a is disposed at the upper end opening 183b of the reflecting plate portion 183 in the light guide plate 60A along its inner surface. The diffusion plate 180a is made of a diffusion resin material.

Since the light guide member 170 is a cylindrical body formed of a light guide material, as shown in FIG. 10, the light guide member 170 is housed and assembled between both cylinders 184 and 185. The light guide member 170 is comprised by the cylindrical member main body 171 and the annular flange 172 which protrudes radially outward from the outer peripheral part of the upper end of this member main body 171. As shown in FIG. Thereby, in the light guide member 170, the member main body 171 is located between both cylinders 184 and 185, and the flange 172 is mounted on the outer peripheral part of the opening part of the scale plate 20d, and is engaged.

Further, since the member body 171 protrudes from the inner circumferential surface of the plurality of protrusions 171a, each of the protrusions 171a of the member body 171 is in the engagement hole 185a of the inner cylinder 185. Each is interlocked. These engagements are such that the outer periphery of the opening of the scale plate 20d is pressed to the upper end of the periphery of the outer periphery cylinder 184 by the flange 172.

In addition, the member main body 171 has three convex lens portions 171b (only two convex lens portions are shown in FIG. 10), and each of these convex lens portions 171b has an annular bottom surface of the member main body 171 ( It is raised in a convex lens shape directed downward from the light source side annular end portion. Here, each convex lens 171b is positioned to face each light source 83, respectively. As a result, the light guiding member 170 receives light from each light source 83 at each convex lens portion 171b corresponding to each light source 83, converts the light into parallel light, guides the light into the inside, and emits light from the upper surface. It exits toward the inner side of the base 24a of 20c. However, each light source 82 emits blue light by the lighting, and each light source 81 emits white light by the lighting. In addition, the rotation system 40 is also substantially the same as the vehicle speedometer 20. The rest of the configuration is the same as in the second embodiment.

When each light source 83 and each light source 82 of the vehicle speedometer 20 are turned on at night, the light of each light source 83 is respectively guided by each of the corresponding convex lenses 171b by the light guide member 170. The light is converted into parallel light and introduced into the member body 171. Accordingly, each parallel light in the member main body 171 enters into the base 24a of the light emission instruction 20c from the upper end surface of the member main body 171.

In this case, since the light of each light source 83 enters the base 24a as parallel light with that of the optical action of each convex lens part 171b by the light guide member 170, this angle Incident light does not become dark in the area | region between each light source 83, but is obtained by entering into the base 24a efficiently with uniform light corresponding to the light of each light source 83. FIG.

For this purpose, the light emitting instruction 20c is obtained by emitting light through the slit 25a of the cover 25 to the guide portion 20c at a uniform brightness based on the light incident in the base 24a regardless of its rotational position. . In addition, as described above, the cylinders 184 and 185 reflect the light from each light source 83 toward the light guide member 170, so that the utilization rate of each light source 82 is further increased.

In addition, blue light of each light source 82 is incident on the light guide plate 60A from the light guide section 63 and exits from the guided exit face 64 toward the graduation section 28. To this end, the scale 28 is illuminated with blue light. At this time, the blue light guided by the light guide portion 63 is incident on the central portion 27 of the scale plate 20d from its inner surface. As a result, the character portion 27a of the central portion 27 is lightened in blue which is darker than the surface of the scale portion 28. As a result, the indication by the light emission instruction 20c is obtained by being visually recognized by the light emission instruction 20c in a state where the scale 28 is illuminated in a lighter blue color than the character portion 27a. As described above, the character portion 27a is formed in a cross-sectional oblique shape. For this purpose, the blue light emitted from the exit end face 64 of the light guide plate 60A to the surface of the scale portion 28 and the light emission guide 20c at night are provided to provide a sense of depth or three-dimensional effect. .

In addition, when each light source 81 of the vehicle speedometer 20 lights up at night, the white light of each light source 81 is reflected by the reflecting plate part 183, and is diffused by the diffuser plate 180a, and the scale plate is carried out. 20d is transmitted from its inner surface. At this time, since the luminance of the light passing through the gap between the inner central portion 27 and the graduation portion 28 of the scale plate 20d is higher than the luminance of the light passing through the central portion 27 and the graduation portion 28, the portion of the gap is It is brightly illuminated with illusions. In addition, as described above, the character portion 27a is formed to have an inclined cross section. As a result, the white light emitted from the diffuser plate 180a and the guidance by the light emission instruction 20c at night are provided as a three-dimensional impression of a sense of depth. In addition, the above effects are also achieved in the rotation system 40.

In the night running, when each light source 81 applied to each light source 82 is turned on, both of the blue light emitted from the emission section 64 of the light guide plate 60A and the white light emitted from the diffuser plate 180a The surface of the scale 28 is illuminated. To this end, the instruction by the light emission instruction 20c at night can provide a black and white and some three-dimensional feeling of depth.

(5th Embodiment)

11 shows a fifth embodiment of the present invention. The scale portion 28 is integrated with the center portion 27. Moreover, it extends so that the upper end opening 183b of the reflecting plate part 183 of the reflector 130 of 60A of light guide plates may be covered.

In addition, an annular light guide member 190 is disposed along the wall 186 formed on the outer circumference of the reflector 180, and the light guide member 190 is formed at the L-shaped bent portion 191. It is located so as to face the surface side of the scale plate 20d from between the upper end of the wall portion 186 and the inner end of the bottom wall 101 of the shoulder plate 100. In addition, each light source 82 is provided on the surface of the circuit board 80 so as to face the bottom surface 192 of the light guide member 190. However, each light source 82 emits white light, and each light source 81 emits blue light. The rest of the configuration is the same as in the fourth embodiment.

The blue light of each light source is determined by the indication of the light emission instruction 20c by each light source 83, the lighting of each light source 81 or each light source 82, or the simultaneous lighting of these light sources 81 and 82. By the white light of the light source 82 or the blue-light light by mixing them, the cross-sectional inclination shape of the scale part 28 of the scale board 20d can provide a certain three-dimensional feeling of depth.

Here, the light guide member 190 is incident to the white light of each light source 82 and exits from the bent portion 191 along the surface of the scale plate 20d, it is possible to secure the illumination of the novel scale plate 20d. The above effects are also the same for the rotation system 40.

In addition, the scale plate 20d may be separated into the center portion 27 and the outer circumferential portion 28 as in the fourth embodiment.

The light guide member 190 may have the light guide plate 60A integrally as a light guide portion.

In addition, the present invention can be applied to an indicator or a variety of instruments having a rotating guide shaft as in the indicator, the cross-coil indicator, the movable coil indicator, the movable core indicator, using the step motor as a driving source.

In addition, the present invention can be applied to a gauge of a vehicle speedometer alone or a gauge of a tachometer alone.

The present invention can also be applied to ordinary guidelines that do not emit light.

Further, the present invention can be applied to light emitting devices such as lamps, light emitting diodes, cold cathode tubes, and electromie sensor elements.

As the light sources 83, for example, a single light emitting diode may be employed, and the light emitting diode may be provided in the base body 24c of the guide body 24.

In addition, you may apply this invention to the instrument of the electric vehicle which has a key switch instead of the ignition switch IG. In addition, the present invention may be applied to instruments for various vehicles such as trucks, buses, and two-wheeled vehicles without being limited to automobiles.

Claims (15)

Translucent scale plates 20a, 40a, 20d, 40d, The light guide plates 60 and 60A provided along the inner surface of the scale plate; A drive unit 20b, 40b having a guide shaft 23 through each of the through holes 11, 61a of the light guide plate and the scale plate; Light emitting instructions 20c and 40c supported at the base 24c at the tip end of the guide shaft, A transmission light source 81 for supplying light along the plate thickness direction of the light guide plate; A light guide light source 82 disposed radially inward from the transmitted light source and supplying light into the light guide plate from an end of the light guide plate; A guide light source 83 disposed radially inward from the transmitted light source and supplying light from the base into the light emission guide; Control means (220, 221) for turning on at least one of the transmissive and light guiding light sources and one of the guide light sources when the key switch (IG) of the vehicle is turned on to emit the other light after a predetermined delay time has elapsed. Automotive instrument with 230). Translucent scale plates 20a, 40a, 20d, 40d, The light guide plates 60 and 60A provided along the inner surface of the scale plate; A drive unit 20b, 40b having a guide shaft 23 through each of the through holes 11, 61a of the light guide plate and the scale plate; Light emitting instructions 20c and 40c supported at the base 24c at the tip end of the guide shaft, A transmission light source 81 supplied along the thickness direction of the light guide plate; A light guide light source 82 disposed radially outward from the transmitted light source and supplying light into the light guide plate from an end of the light guide plate; A guide light source 83 disposed radially inward from the transmitted light source and causing light to enter the light emitting instructions from the base; When the key switch IG of the vehicle is turned on, at least one of the transmitting and guiding light sources and one of the guide light sources emits light, and after a predetermined delay time passes, the control means 220 which emits the other parts. 221, 230, The light guide plate has a light guide portion (190) for supplying light of the light guide light source from the radially outer side to the surface of the scale plate. Translucent scale plates 20a, 40a, 20d, 40d, The light guide plates 60 and 60A provided along the inner surface of the scale plate; A drive unit 20b, 40b having a guide shaft 23 through each of the through holes 11, 61a of the light guide plate and the scale plate; A guide 20c supported at the base 24c at the tip of the guide shaft, A transmission light source 81 for supplying light along the thickness direction of the light guide plate; A light guide light source 82 disposed radially inward from the transmitted light source and supplying light into the light guide plate from an end of the light guide plate; Detection means 150 for detecting the brightness of the surroundings of the vehicle, And a control means (260, 262, 263) for emitting the transmitted light source or the light guide light source in accordance with the detection value of the detection means. Transmissive scales 20a, 40a, 20d, 40d, The light guide plates 60 and 60A provided along the inner surface of the scale plate; Driving parts 20b and 40b having guide shafts 23 through the through-holes 11 and 61a of the light guide plate and the scale plate; A guide 20c supported at the base 24c at the tip of the guide shaft, A transmission light source 81 supplied along the plate thickness direction of the light guide plate; A light guide light source 82 disposed radially outward from the transmitted light source and supplying light into the light guide plate from an end of the light guide plate; Detection means 150 for detecting the brightness of the surroundings of the vehicle, Control means (260, 262, 263) for emitting the transmitted light source or the light guide light source in accordance with the detected value of the detecting means; The light guide plate has a light guide portion (190) for supplying light of the light guide light source from the radially outer side to the surface of the scale plate. Translucent scale plates 20a, 40a, 20d, 40d, The light guide plates 60 and 60A provided along the inner surface of the scale plate; A drive unit 20b, 40b having a guide shaft 23 through each of the through holes 11, 61a of the light guide plate and the scale plate; Light emitting instructions 20c and 40c supported at the base 24c at the tip of the guide shaft; A transmission light source 81 for supplying light along the thickness direction of the light guide plate; A light guide light source 82 disposed radially inward from the transmitted light source and supplying light of a different color from the transmitted light source from an end of the light guide plate to the light guide plate; A guide light source 83 disposed radially inward from the transmitted light source and supplying light from the base into the light emission guide; Control means (220, 221, 230) for causing one of the transmissive and guiding light sources and the guide light source to emit light when the key switch (IG) of the vehicle is turned on, and to emit the other light after a predetermined delay time has elapsed; , And a light quantity adjusting means (160) for adjusting the light quantity of at least one of the two light sources of transmission and light guiding. Translucent scale plates 20a, 40a, 20d, 40d, The light guide plates 60 and 60A provided along the inner surface of the scale plate; A drive unit 20b, 40b having a guide shaft 23 through each of the through holes 11, 61a of the light guide plate and the scale plate; Light emitting instructions 20c and 40c supported at the base 24c at the tip of the guide shaft; A transmission light source 81 for supplying light along the plate thickness direction of the light guide plate; A light guide light source 82 arranged outside the transmission light source in a direction perpendicular to the light guide plate from an end of the light guide plate to supply light different from the transmitted light source to the light guide plate; A guide light source 83 disposed radially inward from the transmitted light source and supplying light from the base into the light emission guide; Control means for controlling one of the transmitted light source, the light guiding light source and the guide light source to emit light when the key switch IG of the vehicle is turned on; 220, 221, 230), Adjusting means (160) for adjusting the amount of light of at least one of the transmitted light source or the light guide light source; The light guide plate has a light guide portion (190) for supplying light of the light guide light source from the radially outer side to the surface of the scale plate. Translucent scale plates 20a, 40a, 20d, 40d, The light guide plates 60 and 60A provided along the inner surface of the scale plate; A drive unit 20b, 40b having a guide shaft 23 through each of the through holes 11, 61a of the light guide plate and the scale plate; A guide 20c supported by the base 24c at the tip end of the guide shaft, A transmission light source 81 for supplying light along the thickness direction of the light guide plate; A light guide light source 82 disposed radially inward from the transmitted light source and supplying light from the end of the light guide plate to the light guide plate in a different color from the transmitted light source; Detection means 150 for detecting the brightness of the surroundings of the vehicle, Control means (260, 263, 264) for emitting the transmitted light source or the light guide light source in accordance with the detected value of the detecting means; And a storage means (160, 265) for adjusting at least one of the transmitted light source and the light guide light source. Translucent scale plates 20a, 40a, 20d, 40d, The light guide plates 60 and 60A provided along the inner surface of the scale plate; A drive unit 20b, 40b having a guide shaft 23 through each of the through holes 11, 61a of the light guide plate and the scale plate; A guide 20c supported at the base 24c at the tip of the guide shaft, A transmission light source 81 for supplying light along the plate thickness direction of the light guide plate; A light guide light source 82 arranged radially outward from the transmitted light source and supplying light of a different color from the transmitted light source from an end of the light guide plate to the light guide plate; Detection means 150 for detecting the brightness of the surroundings of the vehicle, Control means (260, 263, 264) for emitting the transmitted light source or the light guide light source in accordance with the detection value of the decoupling means; Adjusting means (160, 265) for adjusting the amount of light of the transmitted light or at least Hannock of the light guide light source; The light guide plate has a light guide portion (190) for supplying light of the light guide light source from the radially outer side to the surface of the scale plate. Translucent scale plates 20a, 40a, 20d, 40d, The light guide plates 60 and 60A provided along the inner surface of the scale plate; A drive unit 20b, 40b having a guide shaft 23 through each of the through holes 11, 61a of the light guide plate and the scale plate; Guides 20c and 40c supported at the base 24c at the distal end of the guide shaft, A transmission light source 81 for supplying light along the thickness direction of the light guide plate; And a light guide light source (82) disposed radially inward from the transmitted light source to supply light different from the transmitted light source from an end of the light guide plate to the light guide plate. The transmissive gradation plates 20a, 40a, 20d, 40d, The light guide plates 60 and 60A provided along the inner surface of the scale plate; Drive parts 20b and 40b provided on the inner side of the light guide plate and having a guide shaft 23 through the through holes 11 and 61a of the light guide plate and the scale plate; Guides 20c and 40c positioned on the surface side of the scale plate and supported by the base 24c at the tip of the guide shaft; A transmission light source 81 for supplying light along the plate thickness direction of the light guide plate; A light guide light source 82 disposed radially outward from the transmitted light source and supplying light different from the transmitted light source from the end of the light guide plate to the light guide plate; The light guide plate has a light guide portion (190) for supplying light of the light guide light source from the radially outer side to the surface of the scale plate. The method of claim 9 or 10, wherein the instructions are light emission instructions, And a guide light source (83) for supplying light of a color different from the transmissive and guiding light source from the base to the light emitting instruction. 12. The vehicle instrument according to any one of claims 1 to 11, comprising a circuit board (80) disposed in parallel with the scale plate and having a plurality of light sources arranged on the scale plate side. 12. The vehicle instrument according to any one of claims 1, 5 and 11, comprising a light shielding cylinder (84) that isolates between the light guide light source and the guide light source. The method according to any one of claims 1, 3, 5, 7, 9, The scale plate is composed of the central portions 27 and 42 on the improvement disc and the annular outer periphery portions 28 and 43 of the improvement on the radially outward direction from the central portion. The central portion has an arc-shaped character region 27a along its outer circumference portion, The outer circumferential portion is formed to be inclined such that the central portion reaches the inner side of the central portion, and has a graduation area. And the light guide plate has an end portion (64) for supplying light toward the surface of the outer circumference portion. The scale plate is composed of a central portion 27, 42 in the shape of a rough disc, and an outline outer peripheral portion 28, 43 in a substantially concentric manner located radially outward from the central portion. The center portion has an arc-shaped character area 27a along its outer circumference portion, The outer circumferential portion is formed to be inclined such that the central portion reaches the inner side of the central portion, and has a graduation area. The light of the transmitted light source is a vehicle instrument, characterized in that passing between the center portion and the outer peripheral portion.